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Sultepec
Sultepec is a municipality in the State of Mexico in Mexico. The municipal seat is Sultepec de Pedro Ascencio de Alquisiras. The municipality covers an area of 552.52 km². The Spanish discovered silver lodes here in 1531, which started commercial silver mining in the area. Along with Amatepec the area became known as the "Provincia de la Plata". Johann Engel was one of the Germans to settle in the area in 1536, and introduced litharge as a flux in the smelting of the ore. Amalgamation Amalgamation is the process of combining or uniting multiple entities into one form. Amalgamation, amalgam, and other derivatives may refer to: Mathematics and science * Amalgam (chemistry), the combination of mercury with another metal **Pan am ... was used on a large scale in 1556. As of 2005, the municipality had a total population of 24,986. References Municipalities of the State of Mexico Populated places in the State of Mexico {{México-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexico (state)
The State of Mexico ( es, Estado de México; ), officially just Mexico ( es, México), is one of the 32 federal entities of the United Mexican States. Commonly known as Edomex (from ) to distinguish it from the name of the whole country, it is the most populous, as well as the most densely populated, state in the country. Located in South-Central Mexico, the state is divided into 125 municipalities. The state capital city is Toluca de Lerdo ("Toluca"), while its largest city is Ecatepec de Morelos ("Ecatepec"). The State of Mexico surrounds Mexico City on three sides and borders the states of Querétaro and Hidalgo to the north, Morelos and Guerrero to the south, Michoacán to the west, and Tlaxcala and Puebla to the east. The territory that now comprises the State of Mexico once formed the core of the Pre-Hispanic Aztec Empire. During the Spanish colonial period, the region was incorporated into New Spain. After gaining independence in the 19th century, Mexico City w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
State Of Mexico
The State of Mexico ( es, Estado de México; ), officially just Mexico ( es, México), is one of the 32 federal entities of the United Mexican States. Commonly known as Edomex (from ) to distinguish it from the name of the whole country, it is the most populous, as well as the most densely populated, state in the country. Located in South-Central Mexico, the state is divided into 125 municipalities. The state capital city is Toluca de Lerdo ("Toluca"), while its largest city is Ecatepec de Morelos ("Ecatepec"). The State of Mexico surrounds Mexico City on three sides and borders the states of Querétaro and Hidalgo to the north, Morelos and Guerrero to the south, Michoacán to the west, and Tlaxcala and Puebla to the east. The territory that now comprises the State of Mexico once formed the core of the Pre-Hispanic Aztec Empire. During the Spanish colonial period, the region was incorporated into New Spain. After gaining independence in the 19th century, Mexico City w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Municipalities Of The State Of Mexico
Mexico is a state in central Mexico that is divided into 125 municipalities. According to the 2020 Mexican Census, it is the most populated state with inhabitants and the 8th smallest by land area spanning . Municipalities in the State of Mexico are administratively autonomous of the state according to the 115th article of the 1917 Constitution of Mexico. Every three years, citizens elect a municipal president (Spanish: ''presidente municipal'') by a plurality voting system who heads a concurrently elected municipal council (''ayuntamiento'') responsible for providing all the public services for their constituents. The municipal council consists of a variable number of trustees and councillors (''regidores y síndicos''). Municipalities are responsible for public services (such as water and sewerage), street lighting, public safety, traffic, and the maintenance of public parks, gardens and cemeteries. They may also assist the state and federal governments in education, emerg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amatepec
Amatepec is one of 125 municipalities, in Mexico State in Mexico. The municipal seat is the town of Amatepec and its largest town is Palmar Chico. The municipality covers an area of 624.9 km². The name Amatepec comes from Náhuatl meaning "hill of the Amate tree". The Spanish discovered silver lodes here in 1531, which started commercial silver mining in the area. Along with Sultepec, the area became known as the "Provincia de la Plata". As of 2005, the municipality had a total population of 27,026. Archaeological site Northeastern of the city around 15 miles away of Amatepec, was discovered the Archaeological site of San Miguel Ixtapan that belonged to the Otomi people The Otomi (; es, Otomí ) are an indigenous people of Mexico inhabiting the central Mexican Plateau (Altiplano) region. The Otomi are an indigenous people of Mexico who inhabit a discontinuous territory in central Mexico. They are linguistica .... This place is the most important prehispanic site ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Municipalities Of Mexico
Municipalities (''municipios'' in Spanish language, Spanish) are the second-level administrative divisions of Mexico, where the first-level administrative division is the ''states of Mexico, state'' (Spanish: estado). They should not be confused with cities or towns that may share the same name as they are distinct entities and do not share geographical boundaries. As of January 2021, there are 2,454 municipalities in Mexico, excluding the 16 Boroughs of Mexico City, boroughs of Mexico City. Since the 2015 Intercensal Survey, two municipalities have been created in Campeche, three in Chiapas, three in Morelos, one in Quintana Roo and one in Baja California. The internal political organization and their responsibilities are outlined in the 115th article of the Constitution of Mexico, 1917 Constitution and detailed in the constitutions of the states to which they belong. are distinct from , a form of Mexican Localities of Mexico, locality, and are divided into ''Colonia (Mexico ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Administrative Divisions Of Mexico
The United Mexican States ( es, Estados Unidos Mexicanos) is a federal republic composed of 32 federal entities: 31 states and Mexico City, an autonomous entity. According to the Constitution of 1917, the states of the federation are free and sovereign in all matters concerning their internal affairs. Each state has its own congress and constitution. Federal entities of Mexico States Roles and powers of the states The states of the Mexican Federation are free, sovereign, autonomous and independent of each other. They are free to govern themselves according to their own laws; each state has a constitution that cannot contradict the federal constitution, which covers issues of national competence. The states cannot make alliances with other states or any independent nation without the consent of the whole federation, except those related to defense and security arrangements necessary to keep the border states secure in the event of an invasion. The political organizat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Municipal Seat
A municipal seat or ''cabecera municipal'' is an administrative center, seat of government, or capital city of a municipality or civil parish with other villes or towns subordinated. The term is used in Brazil, Colombia, Government of Colombia, January 29, 2017. , and , countries of Latin-America. Other variations In Ecuador is assigned as ''Canton seat'', in Argentina is named ''Department seat''.See also * |
North American Central Time Zone
The North American Central Time Zone (CT) is a time zone in parts of Canada, the United States, Mexico, Central America, some Caribbean Islands, and part of the Eastern Pacific Ocean. Central Standard Time (CST) is six hours behind Coordinated Universal Time (UTC). During summer, most of the zone uses daylight saving time (DST), and changes to Central Daylight Time (CDT) which is five hours behind UTC. The largest city in the Central Time Zone is Mexico City; the Mexico City metropolitan area is the largest metropolitan area in the zone and in North America. Regions using (North American) Central Time Canada The province of Manitoba is the only province or territory in Canada that observes Central Time in all areas. The following Canadian provinces and territories observe Central Time in the areas noted, while their other areas observe Eastern Time: * Nunavut (territory): western areas (most of Kivalliq Region and part of Qikiqtaaluk Region) * Ontario (province): a port ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Litharge
Litharge (from Greek lithargyros, lithos (stone) + argyros (silver) ''λιθάργυρος'') is one of the natural mineral forms of lead(II) oxide, PbO. Litharge is a secondary mineral which forms from the oxidation of galena ores. It forms as coatings and encrustations with internal tetragonal crystal structure. It is dimorphous with the orthorhombic form massicot. It forms soft (Mohs hardness of 2), red, greasy-appearing crusts with a very high specific gravity of 9.14–9.35. PbO may be prepared by heating lead metal in air at approximately 600 °C (lead melts at only 300 °C). At this temperature it is also the end product of heating of other lead oxides in air. This is often done with a set of bellows pumping air over molten lead and causing the oxidized product to slip or fall off the top into a receptacle, where it quickly solidifies in minute scales. :PbO2 –(293 °C)→ Pb12O19 –(351 °C)→ Pb12O17 –(375 °C)→ Pb3O4 –(605 °C)→ PbO Historical term ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flux (metallurgy)
In metallurgy, a flux () is a chemical cleaning agent, flowing agent, or purifying agent. Fluxes may have more than one function at a time. They are used in both extractive metallurgy and metal joining. Some of the earliest known fluxes were sodium carbonate, potash, charcoal, coke, borax, lime, lead sulfide and certain minerals containing phosphorus. Iron ore was also used as a flux in the smelting of copper. These agents served various functions, the simplest being a reducing agent, which prevented oxides from forming on the surface of the molten metal, while others absorbed impurities into the slag, which could be scraped off the molten metal. Fluxes are also used in foundries for removing impurities from molten nonferrous metals such as aluminium, or for adding desirable trace elements such as titanium. As cleaning agents, fluxes facilitate soldering, brazing, and welding by removing oxidation from the metals to be joined. In some applications molten flux also serve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smelting
Smelting is a process of applying heat to ore, to extract a base metal. It is a form of extractive metallurgy. It is used to extract many metals from their ores, including silver, iron, copper, and other base metals. Smelting uses heat and a chemical reducing agent to decompose the ore, driving off other elements as gases or slag and leaving the metal base behind. The reducing agent is commonly a fossil fuel source of carbon, such as coke—or, in earlier times, charcoal. The oxygen in the ore binds to carbon at high temperatures due to the lower potential energy of the bonds in carbon dioxide (). Smelting most prominently takes place in a blast furnace to produce pig iron, which is converted into steel. The carbon source acts as a chemical reactant to remove oxygen from the ore, yielding the purified metal element as a product. The carbon source is oxidized in two stages. First, the carbon (C) combusts with oxygen (O2) in the air to produce carbon monoxide (CO). Second, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patio Process
The patio process is a process for extracting silver from ore. Smelting, or refining, was necessary because silver does not occur by itself in a natural state like some metals. Instead, it is made up of a larger ore body. Thus, smelting, or refining, is necessary to remove other byproducts to get at pure silver. The process, which uses mercury amalgamation to recover silver from ore, was reportedly invented by Bartolomé de Medina in Pachuca, Mexico, in 1554. It replaced smelting as the primary method of extracting silver from ore at Spanish colonies in the Americas. Although some knowledge of amalgamation techniques were likely known since the classical era, it was in the New World that it was first used on a large industrial scale. Other amalgamation processes were later developed, importantly the pan amalgamation process, and its variant, the Washoe process. The silver separation process generally differed from gold parting and gold extraction, although amalgamation with mercury ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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